The product is a buffered aqueous solution, not a lyophilized powder, so it does not require reconstitution. The solution contains Cathepsin B at a specific protein concentration and activity, both of which are lot-dependent and provided on the CoA.
C8571
Cathepsin B from human liver
buffered aqueous solution, ≥200 units/mg protein (One unit is defined as the amount of enzyme that hydrolyzes 1 μmol of Z-Arg-Arg-beta-naphthylamide per minute at 40 °C, using 100 mM Na/K phosphate, pH 6.0, with 1.33 mM EDTA and 2 mM DTT as the activation buffer.)
Synonyme(s) :
Cathepsin B1
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| Taille/Référence | Disponibilité | Prix |
|---|---|---|
25 μg | Veuillez contacter notre Service Clients pour connaître la disponibilité de ce produit. | 622,00 $ |
A propos de cet article
Numéro CAS:
UNSPSC Code:
12352200
NACRES:
NA.32
Numéro CE :
MDL number:
Specific activity:
≥200 units/mg protein (One unit is defined as the amount of enzyme that hydrolyzes 1 μmol of Z-Arg-Arg-beta-naphthylamide per minute at 40 °C, using 100 mM Na/K phosphate, pH 6.0, with 1.33 mM EDTA and 2 mM DTT as the activation buffer.)
Biological source:
human liver
622,00 $
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Laissez-nous vous aiderbiological source
human liver
Quality Segment
form
buffered aqueous solution
specific activity
≥200 units/mg protein (One unit is defined as the amount of enzyme that hydrolyzes 1 μmol of Z-Arg-Arg-beta-naphthylamide per minute at 40 °C, using 100 mM Na/K phosphate, pH 6.0, with 1.33 mM EDTA and 2 mM DTT as the activation buffer.)
UniProt accession no.
shipped in
dry ice
storage temp.
−70°C
Gene Information
human ... CTSB(1508)
General description
Cathepsin B gene is mapped to human chromosome 8p23.1. It is a lysosomal cysteine with 252 amino acids distributed in two chains and is homologous to rat liver sequence. It has disc shaped structure with two domains namely the left-hand ′L′ domain at the amino terminal and right hand ′R′ domain at the carboxyl-terminal.
Application
Cathepsin B from human liver has been used:
- as a positive control in the screening Cathepsin B inhibitor assay
- in wall extension (expansin activity) assay
- in microinjection human foreskin fibroblasts to test its effect on apoptosis induction
Biochem/physiol Actions
Cathepsin B from human liver is highly expressed in the esophageal adenocarcinoma (EAC). It reduces hepatic inflammation and fibrogenesis and may serve as a potential candidate for treating liver diseases.
Cathepsin B has been found to cleave procaspase 1 and procaspase 11 and to induce apoptosis in digitonin-permeabilized cells. Translocation of cathepsin B from the cytoplasm to the nucleus contributes to bile salt induced apoptosis of rat hepatocytes. Levels of cathepsin B in PC12 cells significantly decrease 12 to 24 hours after apoptosis is induced.
Found to cleave procaspase 1 and procaspase 11 and to induce apoptosis in digitonin-permeabilized cells.
Packaging
Package size based on protein content
Physical form
Solution in 50 mM sodium acetate, pH 5.0, with 1 mM EDTA.
Other Notes
One unit will liberate 1 nanomole of 7-amino-4-methylcoumarin from Z-Arg-Arg 7-amido-4-methylcoumarin per min at pH 6.0 at 40 °C.
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Cet article | |||
|---|---|---|---|
| description buffered aqueous solution, ≥200 units/mg protein (One unit is defined as the amount of enzyme that hydrolyzes 1 μmol of Z-Arg-Arg-beta-naphthylamide per minute at 40 °C, using 100 mM Na/K phosphate, pH 6.0, with 1.33 mM EDTA and 2 mM DTT as the activation buffer.) | description lyophilized powder, ≥5 units/mg protein | description recombinant, expressed in FreeStyle™ 293-F cells, ≥90% (SDS-PAGE) | description lyophilized powder, ≥10 units/mg protein |
| biological source human liver | biological source - | biological source human | biological source bovine spleen |
| specific activity ≥200 units/mg protein (One unit is defined as the amount of enzyme that hydrolyzes 1 μmol of Z-Arg-Arg-beta-naphthylamide per minute at 40 °C, using 100 mM Na/K phosphate, pH 6.0, with 1.33 mM EDTA and 2 mM DTT as the activation buffer.) | specific activity ≥5 units/mg protein | specific activity ≥2228 pmol/min-μg | specific activity ≥10 units/mg protein |
| Gene Information human ... CTSB(1508) | Gene Information human ... CTSB(1508) | Gene Information human ... CTSB(1508) | Gene Information cow ... CTSB(281105) |
| form buffered aqueous solution | form lyophilized powder | form aqueous solution | form lyophilized powder |
| storage temp. −70°C | storage temp. −20°C | storage temp. −70°C | storage temp. −20°C |
| UniProt accession no. | UniProt accession no. | UniProt accession no. - | UniProt accession no. |
Classe de stockage
10 - Combustible liquids
Que se passe-t-il ?
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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how to reconstitute the cathepsin B? If it is written >1500units/mg, and C8571-25UG, how come it is in aqeous solution?
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